From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?ISO-8859-1?Q?Nicolas_de_Peslo=FCan?=
	<nicolas.2p.debian@gmail.com>
Subject: Re: Problem with ARP-replies on Kernels 2.6 (possibly 3.0, but not
 2.4!)
Date: Wed, 28 Sep 2011 22:07:52 +0200
Message-ID: <4E837E98.4080608@gmail.com>
References: <4E835E35.3030503@gmx.at>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1;
	format=flowed
Content-Transfer-Encoding: QUOTED-PRINTABLE
Cc: netdev@vger.kernel.org
To: skandranon <skandranon@gmx.at>
Return-path: <netdev-owner@vger.kernel.org>
Received: from mail-wy0-f174.google.com ([74.125.82.174]:60280 "EHLO
	mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1752015Ab1I1UHm (ORCPT
	<rfc822;netdev@vger.kernel.org>); Wed, 28 Sep 2011 16:07:42 -0400
Received: by wyg34 with SMTP id 34so380086wyg.19
        for <netdev@vger.kernel.org>; Wed, 28 Sep 2011 13:07:41 -0700 (PDT)
In-Reply-To: <4E835E35.3030503@gmx.at>
Sender: netdev-owner@vger.kernel.org
List-ID: <netdev.vger.kernel.org>

Le 28/09/2011 19:49, skandranon a =E9crit :

> Basically, I would have expected MyMachine to answer ARP queries rece=
ived via eth0 only if an
> address was queried that was assigned to eth0 (also secondary IP addr=
esses assigned by "ip" or
> virtual interfaces generated by ifconfig).
>
> So: Is this a bug or a feature?

It is a feature.

You should have a look at the file Documentation/networking/ip-sysctl i=
n the kernel source tree, in=20
particular the entry about arp_ignore.

	Nicolas.